JP3070438B2 - Temporary frame equipment for construction - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an all-weather construction temporary frame apparatus.

[0002]

2. Description of the Related Art An all-weather temporary frame has been proposed as a temporary scaffold for the construction of an RC structure high-rise building. This temporary frame is composed of a plurality of temporary columns erected around the building to be constructed according to the shape of the building to be constructed, and a roof frame supported above the temporary columns, and an overhead crane is mounted on the lower surface of the roof frame. The materials placed and lifted by elevators etc. are transported to each part through overhead cranes and assembled. The entire upper surface of the construction site is covered with a roof frame, so work can be performed regardless of the weather.

For this reason, the temporary frame needs to be sequentially raised according to the degree of progress of the construction so that it is always placed immediately above the construction floor.
As disclosed in Japanese Patent Publication No. 172, a method has been proposed in which a temporary support is lifted by a lifting means arranged around a temporary support (temporary tower) on the ground portion, and a new support material is added to a lower portion.

[0004] In addition to this, for example, Japanese Patent Laid-Open No. 5-598
As disclosed in Japanese Patent Publication No. 17-175, there is also a method in which a temporary support column is constituted by a plurality of telescopic long posts that can be extended and retracted, and a work station is arranged above the long post, and the work station is raised by sequentially feeding out the long posts. Proposed.

[0005]

However, in the former invention, the final weight is set because the weight of the temporary column material to be added increases each time the temporary frame is raised, and the load on the lifting means increases sequentially. It is necessary to set the obtained driving force in advance.

On the other hand, in the latter invention, since a full load is applied from the beginning of lifting, a considerable driving force is also required. Each time the long post is sequentially extended, the extended length becomes longer than the accommodated length. The support moment at the joint becomes unstable.

Further, in any of the inventions, since the temporary supporting column itself moves, it cannot be supported from the building under construction, and the higher the floor is, the more unstable the individual temporary supporting column becomes. . In order to eliminate the instability of the independence, braces may be laid as reinforcements between the temporary columns, but it is not only troublesome to bridge the brace, but also increases the load and increases the load due to lifting. Since it requires power, it is not suitable as a temporary frame especially for building a multi-story building such as a skyscraper.

According to the present invention, while the existing apparatus can be effectively used, the driving force for raising the roof frame can be made small and constant at all times, and the temporary support can be supported from the building. It is an object of the present invention to suppress bending of a roof frame when it is raised, and to perform a work of extending a top temporary support column without competing with a construction work.

[0009]

SUMMARY OF THE INVENTION The present invention provides one or a plurality of erections which are erected close to or within a planned construction site of a building and which are successively added upward as the construction height increases. A temporary support, and an upper frame guided around the temporary support via upper and lower guide rollers so as to be able to move up and down.
And provided with a lower frame, the upper and lower frames
And climbing mechanism of arranging the jack for lifting in between,
A state in which the temporary support pillar has penetrated below the lower frame.
A roof frame that is supported in a suspended state and horizontally covers the entire upper surface of the building ; and a guide frame fixed to the lower surface side of the roof frame.
Is arranged and guided by the temporary support so as to be able to move up and down.
Characterized in that a that the support frame (claim 1).

In addition, it is desirable that an overhead crane for transporting materials is disposed on the lower surface of the roof frame, and a crane device for lifting materials is disposed on the upper surface.
It is preferable that the mast of the tower crane is adopted as the temporary support (claim 3), and the temporary support is preferably supported on the building side via a horizontal stay (claim 4).

[0011]

According to the structure of the first aspect, the assembly of the roof frame can be performed immediately above the foundation of the temporary support column while being close to or in contact with the ground. Since the temporary columns are sequentially added upward, the existing temporary columns are fixed in that state. During the climbing operation, the climbing mechanism rises while supporting the weight of only the roof frame.

According to the construction of the second aspect, the loading and loading of the materials in the construction work is performed by the overhead crane, and the crane on the upper surface exclusively lifts the temporary columns and sequentially adds the temporary columns upward. After the construction is completed, it can be used to dismantle the roof frame.

According to the third aspect of the present invention, the climbing mechanism for a tower crane can be applied.

According to the structure of the fourth aspect, the number of braces connecting the temporary columns can be reduced or made unnecessary.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, four temporary frame devices are arranged outside a building 1 to be constructed and are erected on a foundation 2a arranged on the ground (only two are shown in the figures). Mast 2), a climbing mechanism 3 attached to each mast 2 so as to be able to move up and down, and a roof frame 4 that is supported at four corners under each climbing mechanism 3 so as to horizontally cover the entire upper surface of the building 1. And a plurality of overhead cranes 5 arranged on the lower surface of the roof frame 4 and a jib crane 6 movably arranged at the center of the upper surface of the roof frame 4.

Assembly of roof frame 4 and jib crane 6
As shown in FIG. 1, since the work can be performed immediately above the foundation 2 a of the mast 2, the work height from the ground is low,
Work efficiency and safety will be high. Then, after assembling the climbing mechanism 3 at the upper four corners, driving the ascending mechanism 3 and ascending it, assembling the overhead cranes 5, the hoists 7, etc.,
After the assembly is completed, the building 1 can be constructed while the roof frame 4 is raised.

According to the progress of the construction, a cargo lift 8 is arranged on one side of the building 1 as shown in FIG.
Materials such as precast members lifted through the building are transferred to a hoist 7 traveling on an overhead crane 5 and
Is supplied to each part.

The mast 2 and the climbing mechanism 3
Applies a mechanism used for a tower crane, and a mast 2 can select a cylindrical columnar body in addition to a trussed columnar body, and as shown in FIG. The height of the mast material 2b lifted by the jib crane 6 in accordance with the rise of the construction floor is sequentially increased while maintaining the independence stability while being supported by the horizontal stay 9 fixed to one end. it can.

The climbing mechanism 3 includes a sleeve 3a inserted around the outer periphery of the mast 2, an upper frame 3b integrated below the sleeve 3a, a lower frame 3c disposed below the upper frame 3b, Frame 3
A plurality of lifting hydraulic jacks 3d are connected to each other between b and 3c, and the roof frame 4 is supported in a suspended state with the mast 2 penetrating the lower surface of the lower frame 3b. A support frame 3e is fixed to the outer periphery of the mast 2 on the lower surface side of the roof frame 4.

Inside each of the frames 3b, 3c, 3e, there are arranged a plurality of guide rollers 10 which roll in contact with the outer part of the mast 2 as shown in cross section in FIGS. 3 (a) to 3 (c). , And guides the frames 3b to 3c to be able to move up and down.

The upper frame 3b and the lower frame 3c
FIG (a), a pair of pins 11 for each vertical load heavy <br/> support as shown in (b) are inserted and removed capable inserted in the mast 2, the supporting climbing mechanism 3 around the mast 2 It is fixed.

In the above configuration, the climbing mechanism 3
In the stopped state, the hydraulic jack 3d contracts and each pin 11
At a predetermined height of the mast 2.

To lift the upper frame 3b, the pin 11 of the upper frame 3b is pulled out and the hydraulic jack 3d is extended, so that the portion above the upper frame 3b is raised by the jack stroke.

Next, the pin 11 is inserted into the upper frame 3b and vertically supported on the mast 2, and then the pin 12 of the lower frame 3c is pulled out and the hydraulic jack 3d is reduced, so that the lower frame 3c also rises. , Raise the roof frame 4. Thereafter, if the lower frame 3c is vertically supported on the mast 2 by inserting the pin 11, the lifting operation is completed.

In order to raise the roof frame 4 using the climbing mechanism 3, the four climbing mechanisms 3 are simultaneously moved upward after the construction work is interrupted.

At this time, a force that causes the roof frame 4 to bend is generated due to an excessively low rising speed of each part.
Since the guide roller 10c and the guide roller 10 of the support frame 3e act as reaction force rollers in directions opposite to each other with respect to the inclination direction, the bending of the roof frame 4 can be suppressed. As described above, the force that the roof frame 4 tends to bend also occurs when the overhead crane 5 transfers materials, but the guide roller 10 acts as a reaction force roller to suppress the deflection of the roof frame 4. Can be.

After the ascent is stopped, the pins 11 are attached to the lower frame 3c.
The four corners of the roof frame 4 are positioned at the height of the mast 2 and supported horizontally by inserting the load into the mast 2. After this, construction work can be resumed.

After the construction of the building 1 is completed, the overhead crane 5 and the roof frame 4 are sequentially dismantled by the jib crane 6, and then the jib crane 6 itself is dismantled so as not to interfere with the building 1. The temporary frame device can be removed by descending the climbing mechanism 3 in the reverse procedure to the above while sequentially removing from the top.

In the above embodiment, since the building 1 has a rectangular cross section, the case where the masts 2 are arranged at four places outside the building 1 has been described. However, only one to three masts are arranged according to the cross sectional area of the building. Then, the upper part may be covered with a roof frame or, if the cross-sectional area is large, more may be provided.

[0030]

The construction temporary frame apparatus of the present invention has the following advantages.

(1) Since the temporary columns are sequentially added upward, the existing temporary columns are fixed as they are.
Temporary columns can be supported on the building side.

(2) Since the climbing mechanism raises the roof frame while supporting only the weight of the roof frame during the lifting operation, the driving power for raising the temporary frame can be kept small and constant.

(3) The assembling of the roof frame can be performed close to or in contact with the ground, the assembling workability is good, a frame with high accuracy can be obtained, and the height of the roof frame at the time of assembly is reduced. Work can be performed safely.

(4) With the construction of claim 2, the materials necessary for the construction are carried in and installed by an overhead crane, and the crane on the upper surface exclusively lifts the temporary columns and sequentially adds them upward. Therefore, there is no conflict between the work for adding temporary columns and the work for building. After the construction is completed, the crane on the top can be used to dismantle the roof frame.

(5) By adopting the configuration of claim 3, a climbing mechanism for a tower crane can be applied to the climbing mechanism, and existing equipment can be effectively used.

(6) By adopting the constitution of claim 4, the temporary support can secure the self-standing stability by horizontal holding, and the brace connecting the temporary support can be reduced or unnecessary, so that the weight reduction effect is obtained. is there.

[Brief description of the drawings]

FIG. 1 is a side view of a temporary frame device according to the present invention in an initial assembled state.

FIG. 2 is a side view during construction using the same device.

FIG. 3A is a sectional view taken along line AA of FIG. (B)
FIG. 3 is a sectional view taken along line BB of FIG. (C) is a sectional view taken along the line CC.

[Description of Signs] 1 Building 2 Mast (temporary support) 3 Climbing mechanism 3b, 3c Frame 3d Hydraulic jack for lifting 4 Roof frame 5 Overhead crane 6 Jib crane 10 Guide roller 11 Vertical load support pin

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroaki Ikeda 2-3-3 Kandajicho, Chiyoda-ku, Tokyo Obayashi Gumi Tokyo Head Office (72) Inventor Toshimitsu Sakai 2-3-3 Kandajicho, Chiyoda-ku, Tokyo Stock (72) Inventor Hideo Ono 1-10-4 Minamidai, Kawagoe-shi, Saitama Prefecture Obayashi Corporation Tokyo Machinery Plant (56) References JP-A-5-239927 (JP, A) JP-A-6- 212801 (JP, A) JP-A-5-71166 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04G 21/14-21/16 E04G 21/28

Claims (4)

(57) [Claims] 1. One or a plurality of temporary struts which are erected near or within a planned construction position of a building, and which are successively extended upward in accordance with an increase in the construction height; An upper frame and a lower frame are provided around the periphery of the upper and lower guide rollers.
State with obtaining, passing through the climbing mechanism is arranged jack for lifting between the upper and lower frames, the temporary supports the lower portion of the lower frame
A roof frame that is supported in a suspended state and horizontally covers the entire upper surface of the building ; and a guide frame fixed to the lower surface side of the roof frame.
Is arranged and guided by the temporary support so as to be able to move up and down.
And a supporting frame for construction. 2. The hypothetical frame system for construction according to claim 1, wherein an overhead crane for transporting materials is disposed on a lower surface of the roof frame, and a crane for lifting materials is disposed on an upper surface of the roof frame. 3. The temporary frame device for construction according to claim 1, wherein the temporary column is a mast of a tower crane. 4. The temporary frame device for construction according to claim 1, wherein the temporary column is supported on a building side via a horizontal stay.